The Factory Team M4 Low Profile Wheel Nut is designed to fit on the
front of car models (example: B74, B64, TLR 22, TLR 22-4, Tekno EB410,
Yokomo YZ-4 SF) that require a thin nut to maintain the legal width
limit at major events. With large-diameter locking serrations, these
wheel nuts "bite" into the face of the wheel to create a secure hold.